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Analysis of the Cardiac Magnetic Field Using Multichannel Superconducting Quantum Interference Device System

Research Project

Project/Area Number 07308077
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section総合
Research Field Biomedical engineering/Biological material science
Research InstitutionUniversity of Tsukuba

Principal Investigator

MITSUI Toshio  Institute of Clinical Medicine, Department of Cardiovascular Surgery, University of Tsukuba, Professor, 臨床医学系, 教授 (60010170)

Co-Investigator(Kenkyū-buntansha) HARUTA Yasuhiro  Superconducting Sensor Laboratory, 磁場源解析研究室, 室長
TSUKADA Keiji  Superconducting Sensor Laboratory, SQUID応用研究室, 室長
TERADA Yasushi  Institute of Clinical Medicine, Department of Cardiovascular Surgery, University, 臨床医学系, 講師 (90180083)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1996: ¥3,500,000 (Direct Cost: ¥3,500,000)
Keywordsmagnetocardiogram / SQUID / current vector maps / WPW症候群 / His束電位 / 右室負荷 / 左室負荷 / 胎児心磁 / 超伝導量子干渉素子 / 生体磁気計測 / 心起電力 / 刺激伝導系 / 心負荷
Research Abstract

We measured the x and y components of the cardiac field for diagnosing heart disease using the 32-channel superconducting quantum interference device (SQUID) system. The patients' magnetocardiogram (MCG) and electrocardiogram (ECG) were simultaneously recorded in the magnetically shielded room at the University of Tsukuba Hospital. The detection area was 175*175 mm with 64 points on the x-y plane about 10 mm parallel to the surface of the chest. From the data, current vector maps were obtained, which showed the current distribution and isofield maps of two-dimensional vector |Bx, y|=|Bx+By|.
MCG and ECG were evaluated in subjects as follows : normal, right ventricular overload, left ventricular overload, ischemic heart disease, WPW syndrome, and fetus.
On MCG,the peak signal was observed just above the current source. In addition to magnitude, direction, and polarity, time and localization were also represented on the two-dimensional current vector isofield maps.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] 野田泰永 他: "健常人における接線方向成分の心磁図測定" 医科器械学. 65(5). 233-240 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yasunaga Noda et al.: "Magnetocardiogram measured by new SQUID system and it's use for pre and postoperative evaluation" Asian Society for Cardiovascular Surgery. 1. 101 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yasunaga Noda et al.: "Estimation of ventricular overload using a magnetocardiogram and It's use for pre-and post-operative evaluation" Cardiovascular Surgery. Supplement 1. 159 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Keiji Tsukada et al.: "Multichannel SQUID system detecting tangential components of the cardiac magnetic field" Review of Scientific Instruments. 66(10). 5085-5091 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 野田泰永 他: "心磁図と体表面電位マッピングとの比較" 日本生体磁気学会誌. 8(1). 308-311 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 野田泰永 他: "接線方向心磁界計測システムを用いたWPW症候群最早期興奮部位の" 医科器械学. 66(10). 623-624 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yasunaga Noda, et al.: "Magnetocardiogram measured by new SQUID system and it's use for pre and postoperative evaluation." Asian Society for Cardiovascular Surgery. 1. 101 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yasunaga Noda, et al.: "Estimation of ventricular overload using a magnetocardiogram and its use for pre-and postoperative evaluation." Cardiovascular Surgery. (Suppl 1). 159 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Keiji Tsukada, et al.: "Multichannel SQUID system detecting tangential components of the cardiac magnetic field." Review of Scientific Instruments. 66. 5085-5091 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yasunaga Noda, et al.: "Measurement of tangential component of magnetocardiogram in normal subjects." Japanese Journal of Medical Instrumentation. 65. 233-240 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 野田 泰永他: "健常人における接線方向成分の心磁図測定" 医科器械学. 65(5). 233-240 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yasunaga Noda et al.: "Magnetocardiogram measured by new SQUID system and it's use for pre and postoperative evaluation" Asian Society for Cardiovascular Surgery. 1. 101- (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yasunaga Noda et al.: "Estimation of ventricular overload using a magnetocardiogram and It's use for pre-and post-operative evaluation" Cardiovascular Surgery. Supplement 1. 159- (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Keiji Tsukada et al.: "Multichannel SQUID system detecting tangential components of the cardiac magnetic field" Review of Scientific Instruments. 66(10). 5085-5091 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 野田 泰永 他: "心磁図と体表面電位マッピングとの比較" 日本生体磁気学会誌. 8(1). 308-311 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 野田 泰永 他: "接線方向心磁界計測システムを用いたWPW症候群最早期興奮部位の推定" 医科器械学. 66(10). 623-624 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 野田 泰永 他: "健常人における接線方向成分の心磁図測定" 医科器械学. 65. 233-240 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Keiji Tsukada et al.: "Multichannel SQUID system detecting tangential components of the cardiac magnetic field" Review of Scientific Instruments. 66. 5085-5091 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 堀米 仁志 他: "接線方向心磁図を用いた小児の右心肥大の評価" 日本生体磁気学会雑誌. 8(1). 298-301 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 堀米 仁志 他: "新しく開発した接線方向心磁計測システムによる小児の心磁図-第1報-" 日本小児循環器学会雑誌. 11(3). 360-360 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 堀米 仁志 他: "接線方向心磁アローマップによる右脚ブロック症例の右室負荷の評価" 日本小児科学会雑誌. 100(2). 319-319 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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